Ring spinning device for spinning continuously-fed textile fibers



Feb. 21, 1933. H. F MOGRET 1,898,206

RING .sPINNING DEVICE FOR SPINNING CONTINUOUSLY FED TEXTILE FIBERS Filed July 15, 1927 2 Sheets-Sheet 1 I N V E. N TO R2 Henri fiance/' mg ra BY: la /5 $6 n TT'o rs KEYS.

Feb. 21, 1933. N|GRET 1,898,206

RING SPINNING DEVICE FOR SPINNING CONTINUOUSLY FED TEXTILE FIBERS Filed July 15, 1927 2 Sheets-Sheet 2 ZMW ATTORNEY Patented Feb, 21, 1933 NITED STATES PATENT OFFICE HENRI ERANQOIS NIOGRET, OF LYON, FRANCE, ASSIGNOR, BY MESNE ASSIGNMENTS, TO ID'U FONT RAYON COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE RING SPINNING DEVICE FOR SPINNING CONTINUOUSLY-FED TEXTILE FIBERS Application filecl July 15, 1927, Serial No. 205,876, and in Great Britain July 29, 1926.

This invention relates to an improved ring spinning machine, capable of spinning any textile. material, such as wool, cotton, linen, silk and artificial silk, provided, of course, in this last case, that the filaments to be spun have acquired a suitable consistency permitting them to undergo mechanical treatment so that they behave like any other textile material.

In the spinnin of textile materials, difficulties exist in e ecting in a practical way, capable of industrial useon a large scale, the fastening of the thread on the bobbin, which it is necessary to perform every time the bobbin is changed. These diiiiculties occur when'the filaments or threads to be spun by the ring spinning device are continuously fed to the spinning device. Ifthis continuous feed be not interrupted when necessary (when the bobbins are changed, for instance), a substantial length of filament will accumulate between the feed and the spinning device, and this is liable either to become entangled in the machinery or to become wound up on the feeding device, which should, on the contrary, remain always perfectly clean for good working.

Moreover, even if the thread is kept under tension after passing through the feeding device, the fastening .of the thread on the bobbin cannot take place in the usual way by winding the thread once or twice round the bobbin. This operation either interrupts the tension and the drawback mentioned ocours, or else the thread slides on the bobbin and, not being sufficiently secured thereto, it does not wind itself upon'it at the moment when the bobbin is put in motion with the normal speed, and breakage occurs.

According to this invention, these difiiculties are obviated by using, in combina- "'tion with a receiving roller which, during 9 to the up-and-down movement of the plate the interruptions of the winding on the bobbin, receives the thread coming from the feeding device in the known manner, a bob.- bin, the core of which is provided with one or more slits, preferably oblique, so disposed that the thread penetrates into one of these slits after passing through the ring, owing carrying the ring, without becoming secured the bobbin is started, neither earlier nor later, the threadsuddenly becoming fastened to the core of the bobbin by the doubling of the thread which takes place at the very moment when the bobbin begins to rotate.

In the drawings forming part of this specification Figure 1 is a front elevation of one modification of the apparatus comprising this invention.

Figure 2 is a side view of the apparatus illustrated in Figure 1.

The following description will serve to further illustrate the nature of the invention, but this is only intended as an example. The feeder may be of any known type, but in the description, the use of a set of fluted rollers a. and Z2, such as are used in the hosiery industry, is illustrated. These fluted rollers have their axes inthe same horizontal plane, and are arranged so that the filament introduced by the small funnel 0 is ejected vertically downwards through another small funnel d, and is not liable to become wound on either of those toothed wheels. The receiving roller 6 is placed directly below the point of issue of the thread from between the toothed wheels and in such a position that, in case of accidental breakage of the thread during spinning, or while the bobbins. are changed, the free extremity of the thread is taken up by this roller. This roller normally runs at a peripheral velocity equal to the velocity of delivery, but it is capable of turning loosely on its shaft. The adjustment of the roller on the shaft is such that normally it is carried along by the shaft, but a minimum effort will be sufiicient to cause motion relative to the shaft. The bobbin 7 is provided with the fine oblique slit g, finished in such a way that there is no unevenness likely to chafe the thread wound on the bobbin. and that the thread is not secured to the bobbin merely by the fact that it has entered the said slit. A ring 9" adapted to be rotated and reciprocated up and down in the clearly understood from the following description thereof:

Assume that a bobbin has been doffed and an empty bobbin f has been mounted on the spindle 2'. During. the dotting and mounting of the new bobbin f on the spindle the thread fed by the rollers a and b is directed on to and received by the roller 6. The course of the thread is illustrated in Figure 2 and designated by the reference numeral 1. After the bobbin has been mounted the operator manually moves the thread from position No. 1 to the position designated by the reference numeral 2. In the latter position the thread passes through the guide h and through the rail k on the ring 1. At this time the ring 1' does not revolve about the bobbin but merely reciprocates up and down. Accordin ly, the rail is is motionless on the ring 1'. Iduring the reciprocation and espeeially in the upward movement thereof, the thread will engage the slot g. This is clearly illustrated in Figure 2, the reference character r diagrammatically designating one of the positions assumed by the ring 1 in its upward movement. IVhen the thread is completely engaged in the slots, occupying the position designated by the reference numeral 2, the operator suddenly starts the rotation of the spindle i and therefore the bobbin f. Substantially instantly and simultaneously with the beginning of the rotation of the bobbin, the thread is broken between the slot g and the roller e and securely fastened to the bobbin. The rail begins to revolve and the winding is effected without any loss in tension of the thread fed by the feeding mechanism a and 6. During the winding operation the thread assumes the plosition designated by the reference numera 3.

The complete operation of changing a bobbin can thus be very simply effected in from fifteen to twenty seconds, so that the length of filament taken up by the receiving roller is insignificant in proportion to the entire' length wound and spun on to a bobbin of normal dimensions.

What I claim and desire to secure by Letters Patent is 1. A process for the fastening of a continuously-fed textile thread on the bobbin of a ring spinning machine comprising traversing the thread on the motionless bobbin and causing it to engage a device on said bobbin whereby starting of the spindle bearing the bobbin secures an immediate fastening of the thread on said bobbin.

2. A process for the fastening of a continuously-fed textile thread on the bobbin of a ring spinning machine comprising traversing the thread on the motionless bobbin and causing it to enter a slit in the core of said bobbin whereby starting of the spindle bearing the bobbin secures an immediate fastening of the thread on said bobbin.

3. In a ring spinning machine for spinning continuously-fed textile threads a spindle, a bobbin mounted on said spindle, a reciprocating ring carrying a thread and causing it to traverse said bobbin, means on said bobbin to engage the. thread traversing said bobbin, said means securely fastening the thread on said bobbin when the bobbinstarts rotating.

4. In a ring spinning machine for spinning continuously-fed textile threads a spindle, a bobbin mounted on said spindle, a reciprocating ring carrying a thread and causing it to traverse said bobbin, said bobbin having a slit in the core thereof adapted to engage the thread traversing said bobbin and to securely fasten the thread to said bobbin when the bobbin start-s rotating.

5. In a ring spinning machine for spinning continuously-fed textile threads a spindle, a bobbin mounted on said spindle, a reciprocating ring carrying a thread and causing it to traverse said bobbin, said bobbin having an oblique slit in the core thereof adapted to engage the thread traversing said bobbin and to securely fasten the thread to said bobbin when the bobbin starts rotating.

6. In a ring spinning machine for spinning continuously-fed textile threads, the combination of a spindle, a bobbin mounted on said spindle, means on said bobbin adapted to engage a thread traversing said bobbin and to fasten said thread on said bobbin when said bobbin starts rotating, and a roller to receive the continuously-fed thread when the bobbin is being removed and prior to the fastening of the thread onanother bobbin.

7. In a ring spinning machine for spinning continuously-fed textile threads, the combination of a spindle, a bobbin mounted on said spindle, said bobbin having a slit in the core thereof adapted to engage a thread traversing said bobbin and to securely fasten the thread to said bobbin when said bobbin starts rotating and a roller to receive the continuously-fed thread when the bobbin is being removed and prior to the fastening of said thread on another bobbin.

In testimony whereof I have signed my name to this specification.

HENRI FRANQOIS NIOGRET. 

